From 0cb180ea0dcece9157ad71b4136d557c2dbcf209 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 8 Jul 2009 23:02:20 -0700
Subject: Registers: Eliminate the ISA defined floating point register file.

---
 src/arch/mips/regfile/regfile.hh | 35 ++++++++++++++++++++++++++---------
 1 file changed, 26 insertions(+), 9 deletions(-)

(limited to 'src/arch/mips/regfile/regfile.hh')

diff --git a/src/arch/mips/regfile/regfile.hh b/src/arch/mips/regfile/regfile.hh
index 55b22638b..105891bb9 100644
--- a/src/arch/mips/regfile/regfile.hh
+++ b/src/arch/mips/regfile/regfile.hh
@@ -36,7 +36,6 @@
 #include "arch/mips/isa_traits.hh"
 //#include "arch/mips/mt.hh"
 #include "arch/mips/regfile/int_regfile.hh"
-#include "arch/mips/regfile/float_regfile.hh"
 //#include "cpu/base.hh"
 #include "sim/faults.hh"
 
@@ -46,6 +45,32 @@ class EventManager;
 
 namespace MipsISA
 {
+    const uint32_t MIPS32_QNAN = 0x7fbfffff;
+    const uint64_t MIPS64_QNAN = ULL(0x7fbfffffffffffff);
+
+    enum FPControlRegNums {
+       FIR = NumFloatArchRegs,
+       FCCR,
+       FEXR,
+       FENR,
+       FCSR
+    };
+
+    enum FCSRBits {
+        Inexact = 1,
+        Underflow,
+        Overflow,
+        DivideByZero,
+        Invalid,
+        Unimplemented
+    };
+
+    enum FCSRFields {
+        Flag_Field = 1,
+        Enable_Field = 6,
+        Cause_Field = 11
+    };
+
     class RegFile {
       protected:
         Addr pc;                        // program counter
@@ -55,7 +80,6 @@ namespace MipsISA
                                         // not real register
 
         IntRegFile intRegFile;          // (signed) integer register file
-        FloatRegFile floatRegFile;      // floating point register file
 
       public:
         void clear();
@@ -65,13 +89,6 @@ namespace MipsISA
         IntReg readIntReg(int intReg);
         Fault setIntReg(int intReg, const IntReg &val);
 
-
-        FloatReg readFloatReg(int floatReg);
-        FloatRegBits readFloatRegBits(int floatReg);
-        Fault setFloatReg(int floatReg, const FloatReg &val);
-        Fault setFloatRegBits(int floatReg, const FloatRegBits &val);
-
-
         void setShadowSet(int css);
 
       public:
-- 
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